Wind — 1997
| Month | Scherpenheuvel-Zichem | Diest | Difference |
|---|---|---|---|
| Jan | 10 km/h | – | – |
| Feb | 20.5 km/h | – | – |
| Mar | 12.6 km/h | – | – |
| Apr | 12.2 km/h | – | – |
| May | 12.7 km/h | – | – |
| Jun | 12.5 km/h | – | – |
| Jul | 10.5 km/h | – | – |
| Aug | 9.9 km/h | – | – |
| Sep |
| 10.5 km/h |
| – |
| – |
| Oct | 13.9 km/h | – | – |
| Nov | 14 km/h | – | – |
| Dec | 17.6 km/h | – | – |